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xdoc2txt.el
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;;; xdoc2txt.el --- interface of xdoc2txt for Emacs -*- lexical-binding: t; -*-
;; Copyright (C) 2016 ril
;; Author: ril
;; Created: 2016-01-30 20:27:29
;; Last Modified: 2016-01-31 21:38:30
;; Version: 0.2
;; Keywords: Windows, data
;; URL: https://github.com/fenril058/xdoc2txt
;; This program 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 3 of the License, or
;; (at your option) any later version.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This program is a interface of xdoc2txt for Emacs.
;; The program xdoc2txt is a text converter which extract text from
;; binary file such as PDF, WORD, EXCEL, 一太郎 etc. It only works on
;; MS Windows. Its binary file and more infomation can be obtained
;; from <http://ebstudio.info/home/xdoc2txt.html>
;; This file is originated from
;; <http://www.bookshelf.jp/soft/meadow_23.html#SEC238>
;;; Code
(require 'cl-lib)
(defgroup xdoc2txt nil
"xdoc2txt interface for Emacs"
:group 'emacs)
(defcustom xdoc2txt-binary-use-xdoc2txt (executable-find "xdoc2txt.exe")
"If non-nil，use xdoc2txt when the binary file whose extensions
is in `xdoc2txt-extensions'．"
:type 'boolean
:group 'xdoc2txt)
(defcustom xdoc2txt-encoding 'utf-8
"Enconfig for xdoc2txt. You can choose utf-8, utf-16, euc-jp,
japanese-shift-jis, and sjis"
:type 'symbol
:group 'xdoc2txt.el)
(defcustom xdoc2txt-extensions
'("rtf" "doc" "xls" "ppt" "docx" "xlsx" "pptx"
"jaw" "jtw" "jbw" "juw" "jfw" "jvw" "jtd" "jtt"
"oas" "oa2" "oa3" "bun"
"wj2" "wj3" "wk3" "wk4"
"123" "wri" "pdf" "mht")
"*List of file extensions which are handled by xdoc2txt.
They must be written in lowercase."
:type 'list
:group 'xdoc2txt)
(defcustom xdoc2txt-make-header t
"If non-nil, xdoc2txt insert header defined in
`xdoc2txt-make-header-format'")
(defvar xdoc2txt-encoding-option nil)
(defun xdoc2txt-select-encoding ()
(interactive)
(let ((code xdoc2txt-encoding))
(setq xdoc2txt-encoding-option
(cl-case code
('utf-8 " -8 ")
('utf-16 " -u ")
('euc-jp " -e ")
('japanese-shift-jis " -s ")
('sjis " -j ")
))))
(defun xdoc2txt-make-header-format (file)
(concat "XDOC2TXT FILE: " (file-name-nondirectory file) "\n"
"----------------------------------------------------\n"))
(defun xdoc2txt-make-format (file)
(let ((fn (concat
(expand-file-name
(make-temp-name "xdoc2")
temporary-file-directory)
"."
(file-name-extension file)
)))
(copy-file file fn t)
(xdoc2txt-select-encoding)
(when xdoc2txt-make-header
(insert
(xdoc2txt-make-header-format file)))
(insert
(shell-command-to-string
(concat "xdoc2txt" xdoc2txt-encoding-option fn)
))
;; (goto-char (point-min))
;; (while (re-search-forward "\r" nil t)
;; (delete-region (match-beginning 0)
;; (match-end 0)))
;; (goto-char (point-min))
;; (while (re-search-forward
;; "\\([\n ]+\\)\n[ ]*\n" nil t)
;; (delete-region (match-beginning 1)
;; (match-end 1)))
(delete-file fn)))
;;;###autoload
(defun xdoc2txt-binary-file-view (file)
"View a binary file with xdoc2txt"
(interactive "f")
(let ((dummy-buff-name (concat "xdoc2txt:" (file-name-nondirectory file)))
(dummy-buff))
(when (get-buffer dummy-buff-name)
(kill-buffer dummy-buff-name))
(setq dummy-buff (get-buffer-create dummy-buff-name))
(set-buffer dummy-buff)
(xdoc2txt-make-format file)
;; (setq buffer-read-only t)
(set-window-buffer (selected-window) dummy-buff))
(goto-char (point-min))
(view-mode t))
;; (defun xdoc2txt-advice-find-file (orig-func file &rest args)
;; (interactive)
;; (if (and
;; xdoc2txt-binary-use-xdoc2txt
;; (member (file-name-extension file) xdoc2txt-extensions)
;; (y-or-n-p
;; "Use xdoc2txt to show the binary data?")
;; )
;; (xdoc2txt-binary-file-view file)
;; (apply orig-func file args))
;; 'around)
;; (advice-add 'find-file :around 'xdoc2txt-advice-find-file)
;; (defun xdoc2txt-add-advice-find-file ()
;; (interactive)
;; (advice-add 'find-file :around 'xdoc2txt-advice-find-file))
;; (defun xdoc2txt-remove-advice-find-file ()
;; (interactive)
;; (advice-remove 'find-file 'xdoc2txt-advice-find-file))
(defadvice find-file (around xdoc2txt-find-file (file &optional wildcards))
(if (and
xdoc2txt-binary-use-xdoc2txt
(member (file-name-extension file) xdoc2txt-extensions)
(y-or-n-p
"Use xdoc2txt to show the binary data?"))
(xdoc2txt-binary-file-view file)
ad-do-it))
;;;###autoload
(defun xdoc2txt-acivate-advice ()
(interactive)
(ad-activate 'find-file))
(provide 'xdoc2txt)
;;; xdoc2txt.el ends here