464 lines
17 KiB
EmacsLisp
464 lines
17 KiB
EmacsLisp
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;;; sex-mode.el --- Shell EXecute mode / Send to EXternal program
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;;
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;; Author: Lennart Borgman (lennart O borgman A gmail O com)
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;; Created: 2008-06-01T18:41:50+0200 Sun
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(defconst sex-mode:version "0.71")
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;; Last-Updated: 2009-01-06 Tue
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;; URL:
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;; Keywords:
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;; Compatibility:
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;;
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;; Features that might be required by this library:
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;;
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;; None
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;;
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;; Open urls belonging to other programs with those programs. To
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;; enable this turn on the global minor mode `sex-mode'.
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;;
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;; If you for example open a .pdf file with C-x C-f it can be opened
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;; by the .pdf application you have set your computer to use. (Or, if
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;; that such settings are not possible on your OS, with the
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;; application you have choosen here.)
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;;
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;; There is also a defmacro `sex-with-temporary-apps' that you can use
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;; for example with `find-file' to open files in external
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;; applications.
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;;
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;; The functions used to open files in external applications are
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;; borrowed from `org-mode'. There is some small differences:
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;;
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;; - There is an extra variable here `sex-file-apps' that is checked
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;; before the corresponding lists in `org-mode'.
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;;
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;; - In `org-mode' any file that is not found in the lists (and is not
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;; remote or a directory) is sent to an external application. This
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;; would create trouble when used here in a file handler so the
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;; logic is the reverse here: Any file that is not found in the
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;; lists is opened inside Emacs. (Actually I think that might be a
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;; good default in `org-mode' too, but I am not sure.)
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;;
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;; - Because of the above I have to guess which function is the one
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;; that sends a file to an external application.
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;;
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;; (Currently the integration with org.el is not the best code wise.
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;; We hope to improve that soon.)
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Change log:
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 2, or
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;; (at your option) any later version.
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;;
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;; This program 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 GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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;; Floor, Boston, MA 02110-1301, USA.
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Code:
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;;(org-open-file "c:/EmacsW32/nxhtml/nxhtml/doc/nxhtml-changes.html")
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(eval-when-compile (require 'cl))
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(eval-when-compile (require 'org))
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(eval-when-compile (require 'mailcap))
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(defcustom sex-file-apps
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'(
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("html" . emacs)
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("pdf" . default)
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("wnk" . default)
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)
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"Application for opening a file.
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See `sex-get-file-open-cmd'."
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:group 'sex
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:type '(repeat
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(cons (choice :value ""
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(string :tag "Extension")
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(const :tag "Default for unrecognized files" t)
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(const :tag "Remote file" remote)
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(const :tag "Links to a directory" directory))
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(choice :value ""
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(const :tag "Visit with Emacs" emacs)
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(const :tag "Use system default" default)
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(string :tag "Command")
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(sexp :tag "Lisp form")))))
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;;(sex-get-apps)
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(defvar sex-with-temporary-file-apps nil)
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(defun sex-get-apps ()
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(or sex-with-temporary-file-apps
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(append sex-file-apps org-file-apps (org-default-apps))))
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;; (sex-get-file-open-cmd "temp.el")
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;; (sex-get-file-open-cmd "http://some.where/temp.el")
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;; (sex-get-file-open-cmd "temp.c")
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;; (sex-get-file-open-cmd "temp.pdf")
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;; (sex-get-file-open-cmd "temp.doc")
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;; (sex-get-file-open-cmd "/ftp:temp.doc")
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;; (sex-get-file-open-cmd "http://some.host/temp.doc")
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;; (sex-get-file-open-cmd "http://some.host/temp.html")
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(defun sex-get-file-open-cmd (path)
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"Get action for opening file.
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Construct a key from PATH:
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- If PATH specifies a location on a remote system then set key to
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'remote.
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- If PATH is a directory set key to 'directory.
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- Otherwise use the file extension of PATH as key.
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Search with this key against the combined association list of
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`sex-file-apps', `org-file-apps' and `org-default-apps'. The
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first matching entry is used.
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If cdr of this entry is 'default then search again with key equal
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to t for the default action for the operating system you are on
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\(or your own default action if you have defined one in the
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variables above).
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Return the cdr of the found entry.
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If no entry was found return `emacs' for opening inside Emacs."
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(let* ((apps (sex-get-apps))
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(key (if (org-file-remote-p path)
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'remote
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(if (file-directory-p path)
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'directory
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(let ((ext (file-name-extension path)))
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(if (and t ext)
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;; t should be a check for case insensitive
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;; file names ... - how do you do that?
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(downcase ext)
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ext)))))
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(cmd (or (cdr (assoc key apps))
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'emacs)))
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(when (eq cmd 'default)
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(setq cmd (or (cdr (assoc t apps))
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'emacs)))
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(when (eq cmd 'mailcap)
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(require 'mailcap)
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(mailcap-parse-mailcaps)
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(let* ((mime-type (mailcap-extension-to-mime (or key "")))
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(command (mailcap-mime-info mime-type)))
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(if (stringp command)
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(setq cmd command)
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(setq cmd 'emacs))))
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;;(message "cmd=%s" cmd)
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cmd))
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;;;###autoload
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(defgroup sex nil
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"Customization group for `sex-mode'."
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:group 'external)
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;;(setq sex-handle-urls t)
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(defcustom sex-handle-urls nil
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"When non-nil `sex-mode' also handles urls.
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Turn on `url-handler-mode' when turning on `sex-mode' if this is
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non-nil. Open urls in a web browser."
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:type 'boolean
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:group 'sex)
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;; (setq sex-keep-dummy-buffer nil)
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;; (setq sex-keep-dummy-buffer 'visible)
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;; (setq sex-keep-dummy-buffer 'burried)
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(defcustom sex-keep-dummy-buffer 'visible
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"Keep dummy buffer after opening file.
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When opening a file with the shell a dummy buffer is created in
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Emacs in `sex-file-mode' and an external program is called to
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handle the file. How this dummy buffer is handled is governed by
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this variable."
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:type '(choice (const :tag "Visible" visible)
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(const :tag "Burried" burried)
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(const :tag "Do not keep it" nil))
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:group 'sex)
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(defcustom sex-reopen-on-buffer-entry nil
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"If non-nil send file to shell again on buffer entry."
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:type 'boolean
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:group 'sex)
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(defun sex-post-command ()
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"Run post command in `sex-file-mode' buffers.
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If `sex-reopen-on-buffer-entry' is non-nil then send the buffer
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file to system again."
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(when sex-reopen-on-buffer-entry
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(if (and (boundp 'url-handler-regexp)
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(string-match url-handler-regexp buffer-file-name))
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(sex-browse-url buffer-file-name)
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(sex-handle-by-external buffer-file-name))
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(bury-buffer)))
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(defun sex-browse-url (url)
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"Ask a web browser to open URL."
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(condition-case err
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(list (browse-url url) "Opened URL in web browser")
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(error (list nil (error-message-string err)))))
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(defun sex-url-insert-file-contents (url &optional visit beg end replace)
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(sex-generic-insert-file-contents
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'sex-browse-url
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(concat "This dummy buffer is used just for opening a URL.\n"
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"To open the URL again click here:\n\n ")
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(concat "Tried to open URL in web browser, "
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"but it failed with message\n\n ")
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url visit beg end replace))
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(defun sex-file-insert-file-contents (url &optional visit beg end replace)
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;;(message "sex-file-insert-file-contents %s %s %s %s %s" url visit beg end replace)
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(sex-generic-insert-file-contents
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'sex-handle-by-external
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(concat "This dummy buffer is used just for opening a file.\n"
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"The file itself was sent to system for opening.\n\n"
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"To open the file again click here:\n\n ")
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(concat "Tried to send file"
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" to system but it failed with message\n\n ")
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url visit beg end replace))
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(defun sex-write-file-function ()
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(set-buffer-modified-p nil)
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(error "Can't write this to file, it is just a dummy buffer"))
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(defun sex-generic-insert-file-contents (insert-fun
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success-header
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fail-header
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url &optional visit beg end replace)
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(let ((window-config (current-window-configuration)))
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(unless (= 0 (buffer-size))
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(error "Buffer must be empty"))
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(set (make-local-variable 'write-file-functions)
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'(sex-write-file-function))
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(let* ((name url)
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;;(result (sex-browse-url name))
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(result (funcall insert-fun name))
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(success (nth 0 result))
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(msg (nth 1 result)))
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(setq buffer-file-name name)
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(if success
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(progn
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(insert success-header)
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(sex-setup-restore-window-config window-config)
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(message "%s" msg))
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(insert (propertize "Error: " 'face 'font-lock-warning-face)
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fail-header msg
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"\n\nTo try again click here:\n\n "))
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(save-excursion
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(insert-text-button
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buffer-file-name
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'insert-fun insert-fun
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'action (lambda (button)
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;;(sex-browse-url buffer-file-name)
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(funcall (button-get button 'insert-fun) buffer-file-name)
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))))))
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(defun sex-file-handler (operation &rest args)
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"Handler for `insert-file-contents'."
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;;(message "\noperation=%s, args=%s" operation args)
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(let ((done nil)
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(ftype 'emacs))
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;; Always open files inside Emacs if the file opening request came
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;; through Emacs client. Here is a primitive test if we are called
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;; from outside, client-record is bound in `server-visit-files'
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;; ...
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(when (not (boundp 'client-record))
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(let* ((filename (car args))
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(insert-handling (sex-get-file-open-cmd filename)))
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;;(message "insert-handling=%s" insert-handling)
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(when insert-handling
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(setq ftype insert-handling))
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;;(message "ftype=%s, filename=%s" ftype filename)
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))
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(unless (eq ftype 'emacs)
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;;(message "using sex-file-insert-file-contents for %s" args)
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(apply 'sex-file-insert-file-contents args)
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(setq done t))
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;; Handle any operation we don't know about.
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(unless done
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;;(message "fallback for operation=%s, args=%s" operation args)
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(let ((inhibit-file-name-handlers
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(cons 'sex-file-handler
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(and (eq inhibit-file-name-operation operation)
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inhibit-file-name-handlers)))
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(inhibit-file-name-operation operation))
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(apply operation args)))))
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;; Note: Because of a bug in Emacs we must restrict the use of this
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;; file handler to only 'insert-file-contents. (We should of course
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;; anyway do that.)
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(put 'sex-file-handler 'operations '(insert-file-contents))
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(defun sex-setup-restore-window-config (window-config)
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(when (not (eq sex-keep-dummy-buffer 'visible))
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(run-with-idle-timer 0 nil
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'sex-restore-window-config
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(selected-frame)
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window-config
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(unless sex-keep-dummy-buffer
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(current-buffer)))))
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(defun sex-restore-window-config (frame win-config buffer)
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(save-match-data ;; runs in timer
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(with-selected-frame frame
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(set-window-configuration win-config))
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(when buffer (kill-buffer buffer))))
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(defun sex-handle-by-external (&optional file)
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"Give file FILE to external program.
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Return a list:
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(SUCCESS MESSAGE)
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where SUCCESS is non-nil if operation succeeded and MESSAGE is an
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informational message."
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(unless file (setq file buffer-file-name))
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(let ((cmd (sex-get-file-open-cmd file)))
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(assert (not (eq cmd 'emacs)))
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(cond
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((and (stringp cmd) (not (string-match "^\\s-*$" cmd)))
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;; Remove quotes around the file name - we'll use shell-quote-argument.
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(while (string-match "['\"]%s['\"]" cmd)
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(setq cmd (replace-match "%s" t t cmd)))
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(while (string-match "%s" cmd)
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(setq cmd (replace-match
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(save-match-data
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(shell-quote-argument
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(convert-standard-filename file)))
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t t cmd)))
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(save-window-excursion
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(start-process-shell-command cmd nil cmd)
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;;(and (boundp 'org-wait) (numberp org-wait) (sit-for org-wait))
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)
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(list t (format "Opened %s in external application" file)))
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((consp cmd)
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(let ((file (convert-standard-filename file)))
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|
(eval cmd))
|
||
|
|
(list t (format "Opened %s in external application" file)))
|
||
|
|
(t (list nil (format "Don't know how to handle %s" file))))
|
||
|
|
))
|
||
|
|
|
||
|
|
|
||
|
|
(define-derived-mode sex-file-mode nil
|
||
|
|
"External"
|
||
|
|
"Mode for files opened in external programs."
|
||
|
|
(add-hook 'post-command-hook 'sex-post-command nil t)
|
||
|
|
(set-keymap-parent (current-local-map) button-buffer-map)
|
||
|
|
(set-buffer-modified-p nil)
|
||
|
|
(setq buffer-read-only t))
|
||
|
|
|
||
|
|
|
||
|
|
(defvar sex-old-url-insert-file-contents nil)
|
||
|
|
(defvar sex-old-url-handler-mode nil)
|
||
|
|
|
||
|
|
;;;###autoload
|
||
|
|
(define-minor-mode sex-mode
|
||
|
|
"Open certain files in external programs.
|
||
|
|
See `sex-get-file-open-cmd' for how to determine which files to
|
||
|
|
open by external applications. Note that this selection is
|
||
|
|
nearly the same as in `org-mode'. The main difference is that
|
||
|
|
the fallback always is to open a file in Emacs. \(This is
|
||
|
|
necessary to avoid to disturb many of Emacs operations.)
|
||
|
|
|
||
|
|
This affects all functions that opens files, like `find-file',
|
||
|
|
`find-file-noselect' etc.
|
||
|
|
|
||
|
|
However it does not affect files opened through Emacs client.
|
||
|
|
|
||
|
|
Urls can also be handled, see `sex-handle-urls'.
|
||
|
|
|
||
|
|
When opening a file with the shell a \(temporary) dummy buffer is
|
||
|
|
created in Emacs with major mode `sex-file-mode' and an external
|
||
|
|
program is called to handle the file. How this dummy buffer is
|
||
|
|
handled is governed by `sex-keep-dummy-buffer'."
|
||
|
|
|
||
|
|
;; On MS Windows `w32-shell-execute' is called to open files in an
|
||
|
|
;; external application. Be aware that this may run scripts if the
|
||
|
|
;; script file extension is not blocked in `sex-open-alist'.
|
||
|
|
nil
|
||
|
|
:group 'sex
|
||
|
|
:global t
|
||
|
|
;; fix-me: better list handling
|
||
|
|
(if sex-mode
|
||
|
|
(progn
|
||
|
|
(require 'org)
|
||
|
|
(dolist (rec (sex-get-apps))
|
||
|
|
(let* ((ext (car rec))
|
||
|
|
(app (cdr rec))
|
||
|
|
(patt (when (and (stringp ext)
|
||
|
|
(not (eq app 'emacs)))
|
||
|
|
(concat "\\." ext "\\'"))))
|
||
|
|
(unless patt
|
||
|
|
(when (eq ext t)
|
||
|
|
(setq patt (concat ".*\\'"))))
|
||
|
|
(when patt
|
||
|
|
(unless (eq ext t)
|
||
|
|
(add-to-list 'auto-mode-alist (cons patt 'sex-file-mode)))
|
||
|
|
(add-to-list 'file-name-handler-alist
|
||
|
|
(cons patt 'sex-file-handler) t))))
|
||
|
|
(setq sex-old-url-insert-file-contents
|
||
|
|
(get 'insert-file-contents 'url-file-handlers))
|
||
|
|
(setq sex-old-url-handler-mode url-handler-mode)
|
||
|
|
(when sex-handle-urls
|
||
|
|
;;(message "req url, before")
|
||
|
|
(require 'url-handlers)
|
||
|
|
;;(message "req url, after")
|
||
|
|
(put 'insert-file-contents 'url-file-handlers
|
||
|
|
'sex-url-insert-file-contents)
|
||
|
|
(unless url-handler-mode
|
||
|
|
(url-handler-mode 1)
|
||
|
|
;;(message "after url-handler-mode 1")
|
||
|
|
)))
|
||
|
|
;; Remove from the lists:
|
||
|
|
;;(let ((handler-list (copy-list file-name-handler-alist)))
|
||
|
|
(let ((handler-list (copy-sequence file-name-handler-alist)))
|
||
|
|
(dolist (handler handler-list)
|
||
|
|
(when (eq 'sex-file-handler (cdr handler))
|
||
|
|
(setq file-name-handler-alist
|
||
|
|
(delete handler file-name-handler-alist)))))
|
||
|
|
;;(let ((mode-alist (copy-list auto-mode-alist)))
|
||
|
|
(let ((mode-alist (copy-sequence auto-mode-alist)))
|
||
|
|
(dolist (auto-mode mode-alist)
|
||
|
|
(when (eq 'sex-file-mode (cdr auto-mode))
|
||
|
|
(setq auto-mode-alist
|
||
|
|
(delete auto-mode auto-mode-alist)))))
|
||
|
|
(put 'insert-file-contents 'url-file-handlers
|
||
|
|
sex-old-url-insert-file-contents)
|
||
|
|
(unless sex-old-url-handler-mode (url-handler-mode 0))))
|
||
|
|
|
||
|
|
(defmacro sex-with-temporary-apps (open-alist &rest body)
|
||
|
|
"Run BODY with `sex-mode' on.
|
||
|
|
If OPEN-ALIST is not t it replaces the list normally used by
|
||
|
|
`sex-get-file-open-cmd'."
|
||
|
|
(declare (indent 1) (debug t))
|
||
|
|
`(let ((old-sex-mode sex-mode)
|
||
|
|
(sex-with-temporary-file-apps
|
||
|
|
(if (eq ,open-alist t)
|
||
|
|
nil
|
||
|
|
,open-alist)))
|
||
|
|
(when sex-mode (sex-mode -1))
|
||
|
|
(sex-mode 1)
|
||
|
|
,@body
|
||
|
|
(setq sex-with-temporary-file-apps nil)
|
||
|
|
(unless old-sex-mode (sex-mode -1))))
|
||
|
|
|
||
|
|
;; (with-sex t (find-file "c:/emacs-lisp/gimp-mode-v1.40/gimpmode.pdf"))
|
||
|
|
;; (with-sex nil (find-file "c:/emacs-lisp/gimp-mode-v1.40/gimpmode.pdf"))
|
||
|
|
|
||
|
|
(provide 'sex-mode)
|
||
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
|
;;; sex-mode.el ends here
|